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United States Postal Service
The United States Postal Service is an independent agency of the United States government responsible for providing postal service in the United States...
Timeline of Events
1792
2.20.1792
The Postal Service Act, establishing the United States Post Office Department, is signed by President George Washington.
1959
6.8.1959
The USS Barbero and United States Postal Service attempt the delivery of mail via Missile Mail.
1963
7.1.1963
ZIP Codes are introduced for United States mail.
1986
8.20.1986
In Edmond, Oklahoma, U.S. Postal employee Patrick Sherrill guns down 14 of his co-workers and then commits suicide.
1991
11.14.1991
In Royal Oak, Michigan, a fired United States Postal Service employee goes on a shooting rampage, killing four and wounding five before committing suicide.